OTTO DIY MAKER EMOTIONS
3D Printing
What is 3D Printing
3D printing is process of making three dimensional solid objects from a digital file. 3D printed objects are created by laying down successive layers of material until the object is complete. Each of these layers can be seen as a thinly sliced cross-section of the object. Models can be made from scratch on 3D modelling software or can be downloaded from printing libraries such as Thingaverse (link in image below).
Types of 3D printers:
There are many different types of 3D printers and different methods for printing. Vat Photopolymerisation, known as resin printing, involves printing with a liquid resin that is cured with a UV light source. This method involves a lengthy process, as after the print is complete, the resin product needs to sit in a specific chemical bath and is then placed in a UV light box for final curing. Although it is a lengthy process, it can produce a smooth and polished product.
Material extrusion printing involves a filament of plastic rod on a spool. The filament is fed through a nozzle that can move in x, y and z axis. The nozzle heats the plastic to melting point before laying it on a bed to form the layers. When one layer meets the next it is still hot and will bind to the first. It then starts to cool and reset in the form it was laid.
Materials:
3D printing is used in a variety of different professions for varying purposes. As such, 3D printers have been made to print with different materials. These include plastics, metals, concrete, ceramics, paper and certain edibles (e.g. chocolate).
Plastic:
There are two types of plastics. Thermoplastics and thermosetting plastics. We will discuss both of these in class.
1. Find three thermoplastic and three thermosetting plastics used for 3D printing.
– Identify their type (thermoplastic or thermosetting plastic),
– what they are used for (what products are made with this plastic),
– and their properties (features that you can sense, measure or test).
2. Write your main observations about the thermoplastic experiment
3. Write your main observations about the thermosetting plastic experiment
Electronic Components
Electronic Components
Watch the following video to learn more about electronic hardware.
1. What is a PCB?
2. What is the difference between an PCB and a Motherboard?
3. List the components of a PCB and include a definition, referenced image, use and symbol for each:
– Resistors
– Capacitors
– Diodes
– Transistors
Properties of Electricity
4. Define and discuss the following properties of electricity
- Voltage (volts)
- Current
- Resistance
- Amps
- Watts
ASSESSMENT: RESEARCH
Research
The investigation stage of the Design Process includes analysing information on the materials, manufacture processes, components and resources and identifying the constraints of the project. You will use this information to analyse existing products and will include annotations demonstrating your understanding for each design.
What to include: Find at least six (6) images of existing Otto designs online and add them to your Mechatronics Webpage. Provide the following for each image:
- Include a reference for each image. Instruction for how to reference and image can be found here
- Change the image block to a media and text block.
- Include at least three (3) annotations per image.
Include the following for each annotation- An analysis point heading
- A concise statement that includes (1) what you are highlighting and (2) what you want to say about that aspect of the design
Analysis points:
- Design brief
- Materials
- Material Properties
- Manufacture processes
- Components
- Sustainability
- Aesthetics
- Design
- Software
- Design Improvements
- Opinion
Information:
OTTO Purchase Option PARKTRONICS Link
Example:
MARKING KEY
TinkerCAD
What is TinkerCAD
TinkerCAD is an online 3D Modelling software that allows you to design your own OTTO robot. Before you can start your design though, it is important to have a good working knowledge of how TinkerCAD works.
Create a TinkerCAD account
- You will need to create a TinkerCAD account with your College email address.
- You will then need to join a class using the following class link HERE
- Or you can enter the class code 8HH-CCN-F6V
Understanding TinkerCAD
Below is a list of things you need to know about TinkerCAD. The information has been organised to be presented in order so that you get a building knowledge base. Your teacher will organise you to present in groups or individually. Once you have presented, you and / or your group will be the expert for that information. This means other students may come to you to for help.
| PRESENTATION TITLE | MAIN POINTS TO COVER |
|---|---|
| TinkerCAD Basics 1 | – Working from a TinkerCAD Class – Where to find the class code – How to create a designs in Activities – How to change the name of a design – How to save work in TinkerCAD – How to load a previous project – Organising your work for assessment |
| TinkerCAD Basics 2 | – Copy – Paste – Duplicate – Trash – Undo / Redo – Work plane tool – Ruler tool – Notes tool – Deleting a note |
| Navigating Views | – Orbit (2 methods) – Pan – Zoom (2 methods) – Zoom to selected component – Selected views (26 views) – Home view |
| Shapes 1 | – Moving shapes on the x, y and axis – Moving shapes a specific distance – Snap grid – Rotating shapes on the x, y and z axis – Changing the dimensions of a shape (two methods) |
| Shapes 2 | – Locking and unlocking components – Hiding and unhiding components – Show all components – Changing the colour of a component (presets) – Changing the colour of a component (custom) |
| Shapes 3 | – Shapes library – Setting shape parameters – Grouping shapes (two methods) – Ungrouping shapes (two methods) – Creating a hole in a shape – Aligning shapes (two methods) – Mirroring shapes (two methods) |
| Shapes 4 | – Text – Font – Height – Bevel – Segments – Scribble tool – Creating a scribble – Erasing in scribble – Draw shape – Erase with shape – Clear – Done |
| 3D Printing Basics | – Flat bases – Bridge overhang – Canter-lever overhang – Supports – Layer direction – Paying attention to object size |
| Importing Components | – Importing OTTO ROBOT TEMPLATE – Organising your work for assessment – Organising components ready for printing – Exporting a job ready for printing |
| Flash Print 1 | – Downloading Flash Print – Selecting the right printer – Importing a component for printing |
| Flash Print 2 | – Navigating views – Selecting individual and multiple components – Moving components – Rotating components – Scaling components |
| Flash Print 3 | – Selecting the right rotation for printing – Supports explained – Support types – Auto supports – Manually adding and removing supports – Clearing supports |
| Flash Forge Adventurer 3 | – Connecting to a printer through WIFI – Connecting to a printer through USB – Starting a print – Pausing a print – Failed prints – How to remove a finished print – How to prepare the printer for printing |
Digital Technology 